A fluorophore-labeled human cell. A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation. Fluorophores typically contain several combined aromatic groups, or planar or cyclic molecules with several Ï bonds.
IN THIS TOPIC. Pregnancy symptoms are different for everyone, and can vary from month to month and even from pregnancy to pregnancy. Find out what to expect, from the earliest pregnancy symptoms to the wooziness of morning sickness to the aches and pains of your third trimester.
These symptoms include nausea, retching and/or vomiting. Some women only have nausea in the morning, and others have nausea all day and night. Morning sickness typically begins between 4 to 9 weeks of pregnancy and is usually the most severe between 7 to 12 weeks.For most women, morning sickness usually eases between 12 to 16 weeks.omen with severe nausea with or without vomiting or HG (see page 2) in a previous pregnancy have a 75 to 85% chance of having severe morning sickness in a future pregnancy. So having the experience does not seem to make the bouts of nausea, vomiting and/or dry heaves any better.